Home / 18,821,538-25,979,175.36-12,205,950.48

Finding the Fourth Proportional to 18,821,538, 25,979,175.36 and 12,205,950.48

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Solution

The fourth proportional to 18,821,538, 25,979,175.36 and 12,205,950.48 is: 16,847,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,538 : 25,979,175.36 = 12,205,950.48 : x
  2. Step 2: Convert to fraction form
    18,821,538/25,979,175.36 = 12,205,950.48/x
  3. Step 3: Cross multiply
    18,821,538x = 25,979,175.36 × 12,205,950.48
  4. Step 4: Simplify right side
    18,821,538x = 317,100,527,955,396.19
  5. Step 5: Solve for x
    x = 317,100,527,955,396.19/18,821,538
  6. Step 6: Final answer
    x = 16,847,747.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.